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ERIC Number: EJ838139
Record Type: Journal
Publication Date: 2009-May
Pages: 5
Abstractor: As Provided
Reference Count: 9
ISSN: ISSN-0021-9584
From Bunsen Burners to Fuel Cells: Invoking Energy Transducers to Exemplify "Paths" and Unify the Energy-Related Concepts of Thermochemistry and Thermodynamics
Hladky, Paul W.
Journal of Chemical Education, v86 n5 p582-586 May 2009
The conversion of chemical energy entirely into thermal energy by Bunsen burners and into thermal energy and electrical energy by fuel cells of varying efficiencies illustrates different paths by which a chemical reaction can occur. Using the efficiency of producing electrical energy as a path label allows all of the energy-related quantities to be plotted as straight lines on one graph. This readily constructed graph provides a convenient summary of these important thermochemical and thermodynamic quantities and clearly distinguishes the path independent quantities from those that are path dependent. (Contains 1 table, 2 figures, and 6 notes.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A